respirator
plural of Molle
A device designed to allow breathing when it would otherwise be hindered, as by a medical condition or the presence of poisonous vapors.
plural of mark
plural of waler
鉱山では、突発的なガス漏れに備えて全ての作業員が呼吸用保護具を携帯することが義務付けられていた。
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DiQt
Free
★★★★★★★★★★
